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Finding the Fourth Proportional to 346,927.20, 485,076 and 346,927.20

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Solution

The fourth proportional to 346,927.20, 485,076 and 346,927.20 is: 485,076

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,927.20 : 485,076 = 346,927.20 : x
  2. Step 2: Convert to fraction form
    346,927.20/485,076 = 346,927.20/x
  3. Step 3: Cross multiply
    346,927.20x = 485,076 × 346,927.20
  4. Step 4: Simplify right side
    346,927.20x = 168,286,058,467.20
  5. Step 5: Solve for x
    x = 168,286,058,467.20/346,927.20
  6. Step 6: Final answer
    x = 485,076

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.